Desiccator



June 5, 19 23.

E. D. ARIAN DESICCATOR rian a? (ma! June 5, 1923.

1,457,483 E. D. ARIAN DES ICCATOR Filed Sept. 29 1919 2 Sheets-Sheet 2 INVEN'LOR Edward 0.11 9 4502?! Y A'H'ORNEYa between the walls 11 and 12 and will be caused to circulate throughout the com-:- partments 13 on the opposite sides of the structure, due to battle plates 33 and 34, which are arranged between the walls 11 and 12 in staggered relation to each other. These bafiies are arranged throughout the side walls of the compartment and over the dome, thus insuring that the heat will be thoroughly distributed as it travels to the outlet pipe 35.

In order-to insure a positive circulation of the heated air between the walls 11 and 12 a suction fan 36 is disposed across the outlet pipe 35 and may be operated by a driving pulley 37 and gears 38. It will be understood that the back of the compartment 10 is closed by means of a back wall 39 and that the front is normally closed by two swinging doors l0 and 11, these doors, when open, exposing the complete interior of the heat compartment.

It has been found that it is desirable to circulate fresh air through the compartment containing the material to be dehydrated and thus providing air for carrying off the moisture expelled from the dehydrating material without directly admitting any of the heated air or the products of combustion from the burner. In order that fresh air may be delivered satisfactorily to the drying compartment, it should be uniformly distributed and for that reason a plurality of registers 42 are disposed beneath the 'foraminous floor 21 and spaced in relation to each other, as more clearly shown in Fig. 1, so that air will be uniformly supplied to the bottom of the heat compartment. This air is conducted to the registers by means of pipes 13, which extend outwardly from the sides and ends of the desiccator and are arranged in substantially lattice shape, thus producing communication between all of the pipes and all of the registers.

Each of these pipes is fitted with a damper 4A and is otherwise provided with a sheet of absorbent material 45 across its mouth for partially saturating the inflowing air with. moisture as the members do carry this moisture up from liquid containers 46. This insures that when the fruit is of a dry character, the excessive heat will not act to burn the fruit during the drying process but will add suflicient moisture to prevent a thorough desiccation of the material without objectionable results. Fresh air may also be admitted to the heat compartment 10 through openings 47 in the ends of the compartments, which openings are completely or partially closed by shutters 48. The moisture-laden air which passes off from the trays of fruit is gathered within conical hoods 49 and conveyed to the outlet pipe 35 through. pipes 50. These hoods are disposed directly over the tops of the piles of trays and thus will certainly receive the rising vapor and carry heat generated by the burner 29. This generation of heat will cause the interior wall 11 of the heat compartment to radiate sufiicient heat to the drying compartment to dry the material on the trays, it being understood that these trays may be of any desired construction and may have floors of foraminous material, if desired.

The circulation of the products of combustion through the passageways 13 may be retarded by means of dampers 51, particularly shown in Fig. 2. This will act to hold the heated air down at the sides of the trays and thus intensify the heat, if desired. Simultaneous with the development and the circulation of the heated air, fresh air will be drawn in through the numerous pipes 43 and will pass upwardly through the fioor registers 42 to circulate through the heat compartment and carry off the moisture expelled from the drying material. This moisture will then pass into the hoods 49 and be carried outwardly through the pipe 35.

It will thus be seen that the drying apparatus here disclosed insures that the material being dried will not be contaminated by the products of combustion, although being furnished with suflicient heat for drying purposes, and that efiective means are provided for carrying away the water from the material as it is expelled, thus preventing a stewing action which is now produced by many structures of this class. It will further be noted that the temperature may be easily regulated and that the fresh air may be laden with moisture as it enters the heat compartment in the event that there is possibility of burning the material.

lVhile I have shown the preferred form of my invention, various changes in the construction and arrangement of the several parts herein shown and described may be resorted to without departing from the spirit of my invention, as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. A desiccator having a drying compartment within which material to be dehylllll all) drated may be placed,means for producing a circulation of heated air around said compartment without passing therethrough, means for conveying fresh 'airinto the drying compartment and distributing it uni formly thereover, andv means for completing the circulation of said fresh air through the drying compartment, said means including a false foraminous floor, a plurality of interment within which material to be dehydrated may be placed, means for producing a circulation of heated air around said compartment without passing therethrough, means for conveying fresh air into the drying c0mpartment and distributing it uniformly thereover, means for completing the circulation of said fresh .air through the drying compartment, and means for positively creating a draft through the drying'compartment and in the heatcompartment therearound.

3. A desiccator having a central drying compartment enclosed by a heat radiating wall, an outer jacket enclosing said wall and spaced therefrom,heat generating means b low said drying compartment and communi cating with the space between the two walls thereof, a foraminous floor spaced a. distance from the heat radiating floor of the drying compartment, means for uniformly distributing fresh air beneath said floor to circulate through the drying compartment and trays disposed therein, hood members within the drying compartment and over said trays, pipes and a suction fanthrough which the circulation of said fresh. air is completed, and means for insuring and regulating uniform circulation of the heated air between the walls of the drying compartment, including staggered baffle plates within said compartment.

i. A desiccator having a central drying compartment enclosed by aheat radiating wall, an outer jacket enclosing said wall and spaced therefrom, heat generating means below said drying compartment and communicating with the space between the't-Wo walls thereof, a foraminous fioor spaced a distance from the heat radiating floor of the drying compartment means for uniformly.

distributing fresh air beneath said floor to circulate through the drying'compartment I and trays disposed therein, hood members within the drying compartment and over said trays, through which the circulation of said fresh air is completed, meansfor insuringand regulating uniform circulation of the heated air between the walls of the drying compartment, and means for supplying'the inflowing fresh air with moisture;

5. A desiccator having a drying compart ment, the front and back walls of which are solid and; the side wallsof which are falseto provide a. heat circulating space from which heat may be radiated to the drying compartment, bafiie members arranged in staggeredrelation to each other within said space to insure uniform circulation, dampers for? regulating said circulation, means for heating the aircirculatingthrough said compartinent, and means forproducing apositive' suction draft for said heated air.

6. A foraminous false floor within thedrying compartment, a plurality of inter- .80 secting fresh air pipes passing beneath said false floor and formed with outletregisters at their intersections for uniformly supply; ing fresh air to thedrying compartment, and

conical hoods within the dryingcompartment, and through which the circulation of;

said air may be completed.

' 7. In a desiccating apparatus of the character described, drying compartments,a plurality of fresh-air pipes, aforaminous floor above said pipes, convergent hoods abovethe' drying compartments with discharge pipes and a suction fan, double walls surrounding said drying compartment, forming heat conducting passages with staggered baflie plates and retarding dampers; v

8. A desiccating apparatus compris ng. a

drying compartment,-means for heatingfthe same, means for creating a uniform -di'stribution of fresh air within the drying compartment,a hood memberwithin the drying compartment, and disposed above articles to be dried, and a fine leading from the dome,

and creating a draft to carry away the moisture-laden air fro-m the articles drying within the compartment. I

'9. A desiccating apparatus comprising a drying compartment, means for heating the same, means for uniformly distributing fresh air to said compartment, a flue accommodatv 'ingthe-draft of fresh air passing through the drying compartment and the heatedair,

indirectly heating-the same, means forcreating aforced draft for said -fiue,-and bell shaped hoods within the drying'co-mpart ment and with their opened mouths over the articles being dried, said hoods communicate With the flue, and carrying away the moist air from the drying compartment.

In testimony whereof. I have hereunto set 1 my hand in. the presence of two subscribing witnesses. p

1 EDWARD D. ARIAN. Witnesses:

WV; W. I-IEALEY,

. E ING, 

